Costco Versus Sam’s Club: the War Between Retail Competitors Has a Clear Winner

Sam's Club uses its own brand, Member’s Mark, to compete with Costco’s Kirkland Signature.

The battle between big-name brands and store brands has been ongoing for years.

Basic items like toilet paper and trash bags are often very similar across different brands.

Specialty foods and clothing, however, show more differences in quality and style.

Even though they have the same number of stores, Costco makes twice as much money as Sam’s Club.

Sam's Club wants to copy Kirkland's success by offering high-quality items under its own brand.

You need a membership to buy private label products at both Costco and Sam’s Club.

Member’s Mark makes up 30% of Sam’s Club's sales, while Kirkland Signature makes up 28% of Costco's sales.

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